BIGGER. BOLDER. BADDER
At Chevrolet Performance, we have mastered the art of reinvention. Our Big-Block crate engines have evolved to become more innovative, more powerful, and bigger than they’ve ever been. The new Chevrolet Performance ZZ632/1000 DELUXE Big-Block Crate Engine is no exception. It’s our most powerful crate engine ever, with the modern convenience of EFI technology, providing more than 1,004 horsepower on 93-octane pump gas.
Tech Specs
Engine Type: Chevy Tall-Deck Big-Block V-8
Displacement (cu. in.): 632 cu. in.
Bore x Stroke (in.): 4.600 x 4.750 in.
Block: Cast Iron Bowtie with 4-bolt main caps-tall deck
Crankshaft: Forged 4340 steel
Connecting Rods: Forged steel H-beam
Pistons: Forged aluminum 2618 alloy
Intake Manifold: Aluminum high-rise single-plane
Throttle Body: 4500-style
Fuel Injectors: 86-lb/hr
Camshaft Type: Billet Steel Hydraulic Roller
Valve Lift (in.): 0.780 intake/0.782 exhaust
Camshaft Duration (@0.050 in.): 270º intake/287º exhaust
Cylinder Heads: Aluminum spread-port; 70cc chambers -RS-X design
Valve Size (in.): 2.450 intake/1.800 exhaust,Titanium (5/16-in stem OD)
Ignition Type: 58X crank-triggered, coil-near-plug
Compression Ratio: 12.0:1 (nominal)
Rocker Arms: Forged aluminum; roller-style
Rocker Arm Ratio: 1.8:1 (shaft-mount)
Water Pump: Aluminum
Oil Pan: Steel 8-quart
Recommended Fuel: Premium pump (93 octane or higher)
Maximum Recommended RPM: 7,000
Balanced: Internal
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